Sky History 2 HD Monday

Giorgio Tsoukalos examines stories of powerful shining beings who came down from the sky, contemplating whether these tales have been inspired by ancient alien visitation

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors

Experts give their ideas about what life on Earth might be like for other species after the extinction of the human race

Stories of the cut-throat world of river warfare, from Harriet Tubman's successful gunboat raid to the high-speed Patrol Boat River in Vietnam

The Yakovlev Yak-3, a Second World War Soviet fighter that was regarded for its performance at low altitudes and its agility

Giorgio Tsoukalos examines stories of powerful shining beings who came down from the sky, contemplating whether these tales have been inspired by ancient alien visitation

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors

Alice Roberts visits a secret location in the Cotswolds, which appears to be a high-status Anglo Saxon cemetery, where she finds a very precious and fragile artefact

In Northern Ireland, the graveyard of a Victorian workhouse sheds light on one of the most traumatic periods of modern Irish history, the Great Famine of 1845

How a lobster led archaeologists to the discovery of an 8,000-year-old neolithic settlement and witnessing the excavation of an Iron Age crouched burial in Dorset

The team follows the search for artefacts from the Second World War, joining marine archaeologists in the Solent as they raise a Fairey Barracuda divebomber

Alice Roberts witnesses the uncovering of a Roman mosaic on farmland in Rutland, and visits the site of a saintly hermit's hovel discovered in the Lincolnshire fens

Drones and satellite imagery reveal a vanished Neolithic structure in an Irish field, an oasis in a Chinese desert and buried treasure in the UK

First-hand accounts from seasoned, decorated police officers who have had unbelievable but substantiated UFO encounters

Fritz Todt was the man tasked with the Nazis' engineering projects, including the autobahn and the West Wall defences. He died, mysteriously, in 1942

Tony Harris and his team investigate evidence of alien encounters, including a Connecticut man said to have summoned to UFO

The Roman Emperor Caligula, also known as Gaius, exploring his brief but brutal reign from AD 37 to 41, highlighting his descent into madness and tyrannical behaviour

Giorgio Tsoukalos examines stories of powerful shining beings who came down from the sky, contemplating whether these tales have been inspired by ancient alien visitation

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors

First-hand accounts from seasoned, decorated police officers who have had unbelievable but substantiated UFO encounters